CN118336426A

CN118336426A - Clamping plate type connector

Info

Publication number: CN118336426A
Application number: CN202410648120.6A
Authority: CN
Inventors: 刘国红; 曾志能; 许超; 张咸春
Original assignee: Dongguan Kangrui Electronic Co ltd; Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Dongguan Kangrui Electronic Co ltd; Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2024-05-23
Filing date: 2024-05-23
Publication date: 2024-07-12

Abstract

An object of the present application is to provide a clip-on connector comprising: a housing, a terminal assembly, a CPA device, and a TPA device; the shell is provided with a plurality of openings into which the TPA device is inserted when in operation; a cavity is formed in the housing for accommodating the terminal assembly; the CPA device is inserted into one end of the shell; the housing is configured to house an electrical connection assembly of the connector such that the first connection conductor and the second connection conductor of the connector form a secure electrical connection; the terminal assembly is configured to join together the first connection conductor and the second connection conductor of the connector to form an electrical connection; the CPA device is configured to achieve secondary locking of the connector; the TPA device is configured to achieve secondary locking of the terminal assembly; according to the CPA device, the first locking arm and the second locking arm are additionally arranged on the CPA device and are in clamping connection with the corresponding protrusions in the shell, so that the wire end piece can be firmly fixed in the shell, and the socket is still stable even after the CPA device is used for a long time.

Description

Clamping plate type connector

Technical Field

The invention relates to the technical field of semiconductor devices, in particular to a clamping plate type connector.

Background

The clip-on connector mainly comprises the following parts: housing, base, contact, terminals and pins, metal for connectors, male and female, plating, key and positioning, circuit identification, wire gauge. Base (housing): the connector base body has the following functions: the connector, which supports the contact portions (pins, leaves, etc.) in a secure and correct position, is a dust, dirt and moisture resistant, protects the contact portions and conductors, and is a clip-on (in-line) connector that insulates the circuits from each other. The clip-on connector features that the wires are connected to one half of the connector and connected to the other half. These two parts of the connector are called a plug (male) and a socket (female), respectively. The plastic used for the seat body is thermoplastic plastic and can be melted and solidified for many times. The residual plastic in the molding process is collected and crushed for reuse. The special plastic in high temperature environment has excellent high temperature resistance. Such plastic is required for connectors for surface mount applications. Base (header): the connector mounted on the printed circuit board uses a base called a base, also called a pedestal or a wafer. The main difference between the base and the body is that the base is always mounted with the circuit pins, whereas the body is simply a blank. The base has two forms: capped and uncapped. The shield refers to a shield made of a base or skirt around the mating portion of the pins and sockets of the connector. The base also has a friction locking type, which is a base with a cover in part, but has a locking device which makes the combination of the base and the base more reliable. Contact portion: the contact portions in the connector join together two parts of conductors (or wires) to be connected. After bonding, the circuit is completed and current flows through the connector. There are two main types of contact portions: terminals and pins. The specific shape of the object varies. The terminal (or pin) has two ends: front end and back end. The front end is always the mating end which mates with the other terminal to form a contact. The back end always functions as a termination or crimp or connect wires (conductors).

The connector needs the wire end piece to be connected with the plate end piece, and the traditional connector is connected, but the electric connector is loose due to long-time use or quality problems of a connecting device, so that connection is unstable, the use of equipment is affected, and transmission of electric signals is blocked.

Disclosure of Invention

The application aims to provide a clamping plate type connector, which is characterized in that a first locking arm and a second locking arm are additionally arranged on a CPA device, the first locking arm and the second locking arm are in clamping connection with corresponding protrusions in a shell, so that a wire end piece can be firmly fixed in the shell, a socket is still stable even after long-time use, and due to the special structure of the CPA device, the CPA device can be just clamped with the shell when the CPA device is positively installed, and the CPA device is not matched with the shell structure and cannot be assembled when the CPA device is reversely installed.

A clip-on connector comprising: a housing, a terminal assembly, a CPA device, and a TPA device; a plurality of openings are formed in the housing, and the TPA device is inserted into the openings when in operation; a cavity is formed in the housing for accommodating the terminal assembly; the CPA device is inserted into one end of the shell;

The housing is configured to house an electrical connection assembly of the connector such that the first connection conductor and the second connection conductor of the connector form a secure electrical connection;

The terminal assembly is configured to join together a first connection conductor and a second connection conductor of a connector to form an electrical connection;

The CPA device is configured to achieve secondary locking of the connector;

the TPA device is configured to achieve secondary locking of the terminal assembly;

Wherein,

The CPA device comprises a connecting beam body and first locking arms positioned at the left end and the right end of the connecting beam body;

The first locking arm transversely extends along the direction of the shell;

the tail end of the first locking arm is provided with a first bulge extending towards the two end sides of the CPA device.

Preferably, the CPA device further comprises:

the second locking arms are positioned at the left end and the right end of the connecting beam, and are arranged close to one side of the central shaft of the connecting beam relative to the first locking arms;

the second locking arm transversely extends along the direction of the shell;

the second locking arm is provided with a second protrusion extending in a direction perpendicular to the surface of the housing at the end.

Preferably, the housing includes an upper housing formed with the plurality of openings and a lower housing disposed opposite to the upper housing, wherein the cavity is formed between the upper housing and the lower housing; the left and right end sides of the housing further include connection arms that physically connect the upper housing and the lower housing.

Preferably, the method further comprises:

A first snap-in point located below the connecting arm;

When the first locking arm extends to the connector shell to exceed the first clamping point, the first clamping point is in clamping connection with a first bulge at the tail end of the first locking arm.

Preferably, the method further comprises:

A pair of force arms are respectively arranged between the upper shell and the lower shell and between the upper shell and the connecting arm;

the arm of force is provided with a second clamping point;

When the second locking arm extends to the shell body to exceed the second clamping point, the second clamping point is in clamping connection with a second bulge at the tail end of the second locking arm.

Preferably, the upper shell further comprises a limit groove;

The limiting groove is used for providing a clearance for the positive fitting anastomosis of the CPA device when the CPA device is in positive fitting connection with the shell.

Preferably, the CPA device further comprises: third protrusions located at both ends of the connecting beam;

After the CPA device is inserted into the shell, the third protrusions positioned at the two ends of the connecting beam are pulled in the extending direction away from the shell, so that the CPA device is separated from the shell.

Preferably, the first connecting conductor is provided with a groove;

The connecting end of the shell and the first connecting conductor is provided with a bulge corresponding to the groove formed in the first connecting conductor;

the shell is connected with the first connecting conductor through the clamping connection of the groove and the protrusion.

Preferably, the ends of the housing near both sides of the first connection conductor direction have chamfers.

A method of assembling a clip-on connector for forming a clip-on connector, comprising the steps of:

preparing the housing, terminal assembly, CPA device, and TPA device;

Inserting the terminal assembly into the shell after pressing the line, and inserting the TPA device into the opening;

Inserting the CPA device into a pre-pressing position to obtain a pre-pressing state connector;

Under the connector in a pre-pressed state, the PCB is used as a first connecting conductor to be buckled and connected with the shell;

The CPA pressing device is inserted into the locking position from the pre-pressing position, and assembly is completed.

The beneficial effects of the application include: the CPA device is characterized in that a first locking arm and a second locking arm are additionally arranged on the CPA device, the first locking arm and the second locking arm are in clamping connection with corresponding protrusions in the shell, so that a wire end piece can be firmly fixed in the shell, a socket is still stable even after the CPA device is used for a long time, the CPA device can be just clamped with the shell when the CPA device is positively installed due to the special structure of the CPA device, and the CPA device is not matched with the shell structure and cannot be assembled when the CPA device is reversely installed. The application also adds a TPA device in the clamping plate type connector, wherein the TPA device is used for fixing the second connecting conductor and the terminal assembly, so that the second connecting conductor is firmly jointed with the terminal assembly, and the connection firmness between the first connecting conductor and the second connecting conductor is further enhanced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of a clip-on connector according to the present invention;

FIG. 2 is a schematic diagram of a double sided dual hole CPA device of the present invention;

FIG. 3 is a schematic view of a TPA device of this invention;

FIG. 4 is a schematic view of a 90 package terminal assembly of the present invention;

FIG. 5 is a schematic view of a housing structure according to the present invention;

FIG. 6 is a schematic flow chart of an assembling method of a clip type connector according to the present invention;

FIG. 7 is a schematic diagram of a single-sided CPA device of the present invention;

FIG. 8 is a schematic diagram of a PCB structure of the present invention;

fig. 9 is a schematic view of a linear conductor structure according to the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

According to the CPA device, the first locking arm and the second locking arm are additionally arranged on the CPA device and are in clamping connection with the corresponding protrusions in the shell, so that the wire end piece can be firmly fixed in the shell, the socket is still stable even after long-time use, due to the special structure of the CPA device, the CPA device can be just clamped with the shell when the CPA device is assembled, and when the CPA device is reversely assembled, the CPA device is not matched with the shell structure and cannot be assembled. The application also adds a TPA device in the clamping plate type connector, wherein the TPA device is used for fixing the second connecting conductor and the terminal assembly, so that the second connecting conductor is firmly jointed with the terminal assembly, and the connection firmness between the first connecting conductor and the second connecting conductor is further enhanced.

A mezzanine connector, referring to fig. 1, comprising: a housing, a terminal assembly, a CPA device, and a TPA device; the shell is provided with a plurality of openings into which the TPA device is inserted when in operation; a cavity is formed in the housing for accommodating the terminal assembly; the CPA device is inserted into one end of the shell;

The terminal assembly is configured to join together the first connection conductor and the second connection conductor of the connector to form an electrical connection;

Terminal assemblies for connection to conductors, connectors or other electronic components in an electrical circuit, the terminal assemblies providing a reliable contact point for efficient transmission and connection of electrical current and signals, in the present application, there are two types of terminal assemblies, one 90 ° packaged and the other 180 ° packaged, the difference being that the 90 ° packaged terminal assemblies: when the connector is connected with the wire harness, the wire harness is connected with the connector in a mode of being perpendicular to the plane where the connector is located. 180 ° packaged terminal assembly: when the connector is connected to the harness, the harness and the connector are connected in a manner parallel to the plane of the connector, and the connecting conductor in a 180-degree packaging manner passes through the beam of the CPA device, so that an opening is needed in the beam of the CPA device for the connecting conductor to pass through, and as a preferred embodiment, the application opens two openings in the beam of the CPA device for arranging the connecting conductors. While the 90 package type connection conductors do not need to be open in the beam of the CPA device.

Fig. 1 includes a 180 ° packaged terminal assembly, the connection direction of the wire harness and the terminal assembly being parallel to the inlet direction of the housing, the wire harness being inserted into the terminal assembly and being fixedly connected with the terminal assembly when the connector is assembled, and then the terminal assembly being connected with the CPA device, the CPA device carrying the terminal assembly being inserted into the housing, and then being fixedly connected with the terminal assembly from above the housing through the TPA device.

Fig. 4 is an overall structure of the clip-type connector when the terminal assembly is 90 ° packaged, unlike the 180 ° packaged terminal assembly in which the connection direction of the wire harness to the terminal assembly is perpendicular to the inlet direction of the housing, when the terminal assembly is connected to the CPA device, the TPA device is inserted into the gap of the terminal assembly from above the terminal assembly, the terminal assembly is fixed to the wire harness, and then connected to the housing.

The CPA device is configured to achieve secondary locking of the connector;

TPA devices are devices that secure the position of a terminal, can connect or disconnect an electrical circuit without damaging the cable or equipment, are typically composed of a metal housing, pins, and plugs, and have waterproof, wear-resistant properties, etc. The TPA device is mainly used for ensuring accurate transmission and stable connection of circuits, can also improve the reliability of an electronic system, reduce the failure rate and the maintenance times, and increase the good performance of the electronic system, and provides a quick and easy-to-operate circuit connection mode.

According to the packaging mode, the TPA device also has two insertion modes, when the clip-on connector is in a 180-degree packaging mode, the TPA device is inserted into the housing so as to fix the terminal assembly, so that the terminal assembly is locked with the housing, and when the clip-on connector is in a 90-degree packaging mode, the TPA device is inserted into the terminal assembly so as to fix the connection conductor, so that the terminal assembly is locked with the connection conductor. The TPA device has compact structure, is firm and durable: TPA adopts the multi-terminal plugging technology, has compact design, free plugging and unplugging, and has the characteristics of firmness and durability, and is suitable for mass production and use. Dustproof, waterproof and shockproof: the main body part of the TPA connector is made of high-strength plastic materials, so that the influence of dust, moisture and vibration on the inside of the connector can be effectively prevented, and the long-term stable operation of the connector is ensured. High reliability and high performance: the TPA connector adopts a precise circuit design and a high-margin technology, can realize high-reliability performance, and can support high-speed data transmission. The maintenance is convenient: the TPA connector can be conveniently detached or replaced, is convenient to maintain and the like, so that the connecting conductor is better fixed, the circuit is more stable in operation, and the signal transmission efficiency is higher.

In fig. 1, the first locking arm is the longest arm of force, sets up first arch at the end of first locking arm, and after first locking arm inserted the casing, first arch just can be joined with the snap-on that corresponds in the casing, and at this moment CPA device just locks with the casing, can't withdraw from to guarantee the stable connection of line end piece and board end piece.

The first locking arm transversely extends along the direction of the shell;

The first locking arm is provided with a first protrusion extending toward both end sides of the CPA device at the distal end.

A mezzanine connector is an assembly for connecting electrical circuits that can directly connect two or more parts of the circuit together. The clamping plate type connector can be used for realizing power connection, the electric connector enables the electric wire to be connected with the power supply, power supply of an electric appliance is ensured, signal transmission is realized, and the electric connector can be used for transmitting an electric signal to a circuit, so that the effects of connection and conversion are achieved; the maintenance circuit, the electric connector facilitates the separation of the electric wires, so that the electric appliance components are overhauled or replaced; the accuracy and the reliability of the circuit are ensured, and the safety and the stability of the circuit are ensured when the electric connector is connected with the circuit; providing a separable interface, the electrical connector providing an interface for connecting two or more electronic systems to achieve electrical connection between circuits or electronic machines; the design of the electric connector is convenient for connecting and separating different parts, improves the assembly efficiency of the equipment, and can be quickly repaired when faults occur; the electric connector with high protection level can improve vibration resistance, corrosion resistance and the like, so as to adapt to various environmental conditions; the clamp type connector has wide application in the electronic industry, from a power plug socket to a telephone line plug, has the characteristics of high reliability, durability, easy use and the like, and is an indispensable component in electronic equipment and electrical equipment.

In the clip type connector, a CPA device (connector position assurance device) is used to secure engagement of the housing with the connection conductor. The housing includes a space for accommodating the CPA device (connector position assurance device) to ensure that the housing and the connection conductors are engaged with each other. The housing is capable of accommodating an optional terminal position assurance device that involves connecting at least one terminal for one or more wires and/or electrical connections. At least one terminal for one or more wires and/or electrical connections is provided for the housing when the TPA device is in the pre-lock position. At least one terminal provided for the housing is secured thereto when the TPA device is moved to the fully locked position. When the TPA device is in the fully locked position, the TPA device can enter the interior of the housing, and the housing can be fully engaged with the TPA device.

Preferably, the CPA device further comprises:

The second locking arms are positioned at the left end and the right end of the connecting beam and are arranged close to one side of the central shaft of the connecting beam relative to the first locking arms;

the second locking arm transversely extends along the direction of the shell;

The second locking arm is provided at its distal end with a second projection extending in a direction perpendicular to the housing surface.

The second locking arms have two pairs in total, and one pair of second locking arms is located at the same end of the CPA device, i.e. the pair of second locking arms is located at the left end or the right end of the CPA device at the same time, and the protruding directions of the pair of second locking arms are different, as shown in fig. 2, for example, the pair of second locking arms located at the right end of the CPA device, wherein the protruding direction of one second locking arm is upward toward the surface of the housing, and the protruding direction of the other second locking arm is downward toward the surface of the housing, i.e. the protruding directions of the pair of second locking arms are all outward from the center line of the second locking arms. Or the bulge of one second locking arm is downward towards the surface of the shell, and the bulge of the other second locking arm is upward towards the surface of the shell, namely, the bulge directions of the pair of second locking arms are all inward towards the center line of the second locking arm.

The CPA device comprises a double-side conjoined CPA device and a single CPA device.

As shown in fig. 2, the double-sided conjoined CPA device of the present application, i.e. the CPA device is an integral structure, and the locking arms on both sides are connected to the housing, and the middle cross beam of the CPA device has two holes for connecting the wire harness with the connector. However, the middle beam portion of the double-sided integral CPA device may also have only one through hole or more than two through holes for connection of the harness to the connector. The application does not limit the number of through holes, and only needs to realize the connection of the wire harness and the connector.

Fig. 7 shows a single CPA device of the present application, in which the latch arms of the CPA device are discrete structures. When in actual use, a user can select to insert the single CPA device at one side of the shell or insert the single CPA device at two sides of the shell according to different use conditions, and the single CPA device is particularly determined according to installation requirements. Therefore, the single CPA device can be flexibly applied to different shells and is suitable for different environments.

Preferably, referring to fig. 5, the housing includes an upper housing formed with a plurality of openings and a lower housing disposed opposite to the upper housing, wherein a cavity is formed between the upper housing and the lower housing; the left and right end sides of the housing further include connection arms that physically connect the upper housing and the lower housing.

The connector housing is mainly used for protecting and protecting electronic parts and circuits, thereby avoiding short circuits and electrical faults. At the same time, the connector housing is also effective in protecting the electronic equipment from adverse environments such as water, dust, corrosion, and the like. The connector housing is typically made of a material such as metal or plastic. Metal connector housings are more resistant to high temperatures and high pressures than plastic connector housings, but plastic connector housings have the advantage of being lightweight and low cost. The types of connector housings mainly include: annular connector housing: annular connector housings are commonly used in the high-end fields of aerospace and automotive electronics. The appearance of the waterproof and impact-resistant protective cover is generally round or hexagonal, has the characteristics of water resistance, impact resistance, corrosion resistance and the like, and can protect equipment in extreme environments. Rectangular connector housing: rectangular connector housings are commonly used in the fields of electronic devices, mechanical devices, and the like. The appearance is generally rectangle, can adopt the mode of repeated connection and disconnection, convenient to use and installation. Circular connector housing: circular connector housings are commonly used in the field of industrial equipment and the like. The appearance of the waterproof and corrosion-resistant high-temperature waterproof material is generally round, can adapt to various severe construction environments and working conditions. The application mainly adopts a rectangular connector shell, a cavity at one end of the shell is mainly used for being inserted into a board end piece such as a PCB (printed circuit board) and a plurality of openings at the other end of the shell are mainly used for being inserted into a wire end piece such as a wire harness, and the shell can protect a circuit from being interfered by external environment and provide a stable environment for electric connection.

Preferably, the method further comprises:

A first clip point located below the connecting arm;

When the first locking arm extends to the connector shell beyond the first clamping point, the first clamping point is in clamping connection with a first bulge at the tail end of the first locking arm.

The position of the first clamping point in the shell is set according to the length of the first locking arm, when the first locking arm is fully inserted into the shell, the first clamping point is located in front of the tail end of the first locking arm, so that the first clamping point can be just engaged with the first protruding point, the stability of circuit connection is guaranteed, if the position of the first clamping point is set later, the first clamping point cannot be engaged with the first protruding point, the CPA device cannot be engaged with the shell, the CPA device does not have fixing capability, if the position of the first clamping point is set earlier, the first clamping point can be engaged with the first protruding point, but the first clamping point needs to be retracted to be engaged with the first protruding point, the CPA device can be connected with a loose space, namely the distance between the first clamping point and the first protruding point, the CPA device cannot be separated from the shell, the CPA device cannot move in the shell, the CPA device cannot be engaged with the shell, the CPA device cannot be moved, and the service life of the CPA device is reduced because of the CPA device is moved, and the service life of the CPA device is prolonged.

Preferably, the method further comprises:

the arm of force is provided with a second clamping point;

The position of the second clamping point in the shell is set according to the length of the second locking arm, so that when the second locking arm is fully inserted into the shell, the second clamping point is located in front of the tail end of the second locking arm, the second clamping point can be just engaged with the second protruding point, stability of circuit connection is guaranteed, if the position of the second clamping point is set later, the second clamping point cannot be engaged with the second protruding point, the CPA device cannot be engaged with the shell, the CPA device does not have fixing capability, if the position of the second clamping point is set earlier, the second clamping point can be engaged with the second protruding point, but the second clamping point needs to be retracted to be engaged with the second protruding point, loose space, namely the distance between the second clamping point and the second protruding point, is formed, the CPA device cannot be separated from the shell, the CPA device cannot move in the shell, the CPA device cannot be engaged with the shell, the CPA device cannot be moved, and the service life of the CPA device is reduced.

Preferably, the upper shell further comprises a limit groove;

the limit groove is used for providing a clearance for the positive fitting anastomosis of the CPA device when the CPA device is in positive fitting connection with the shell.

The effect of spacing groove is the help judge whether the equipment of CPA device is correct, and only CPA device just can insert the casing completely when just installing the grafting with the casing, if CPA device and casing reverse installation peg graft, then CPA device will be blocked by the spacing groove, leads to CPA device unable complete insertion casing, and the spacing groove can avoid CPA device and casing equipment to take place the mistake, if there is not the spacing groove, and when CPA device and casing equipment take place the mistake, the circuit is connected unstably easily, leads to the circuit damage.

After the CPA device is inserted into the shell, the third bulges at the two ends of the connecting beam are pulled towards the extending direction away from the shell, so that the CPA device is separated from the shell.

When the CPA device is inserted into the housing for fixing, if the connection conductor is to be replaced, the CPA device needs to be separated from the housing, in this embodiment, a worker can use a tool or a finger to press the two sides of the beam of the CPA device to be higher than the protruding parts of the hooks of the housing and toggle in the extending direction away from the housing, so that the locking points on the CPA device are separated from the protrusions in the housing.

Preferably, the first connecting conductor is provided with a groove;

As shown in fig. 8, the grooves are a pair of special-shaped fool-proof grooves, and are respectively arranged at two sides of the first connecting conductor. In this embodiment, the openings of the different sizes are different, as shown in fig. 8, and the two sides of the first connecting conductor are respectively provided with two foolproof grooves with a large size and a small size. According to the application, the grooves are shaped, so that the problem of misconnection or leakage connection when the first connecting conductor is in clamping connection with the shell can be well avoided. Meanwhile, as shown in fig. 1, the protrusions on the shell, which are correspondingly connected with the grooves, are a pair of special-shaped protrusions, and are two large and small protrusions positioned on two sides of the top of the shell respectively. By arranging the groove of the special-shaped fool-proof groove and the corresponding special-shaped bulge, when the connector is used for being connected with the first connecting conductor, if the special-shaped bulge and the groove are reversely arranged, the special-shaped structure cannot be inserted and clamped; only when the special-shaped protrusion and the groove are installed in the forward direction, the insertion and clamping can be well completed. The special-shaped fool-proof groove structure is designed without assembling a connector by a special tool, so that the assembly of workers is facilitated, whether the assembly is correct or not is judged in the assembly process, complicated assembly engineering is omitted, labor is saved, and production cost is greatly reduced. Meanwhile, due to the design of the special-shaped fool-proof groove structure, the connection firmness of the first connecting conductor and the connector can be improved, and the problems of connection looseness and the like caused by misloading or neglected loading and the like are prevented.

Preferably, the first connecting conductor is a PCB, and the groove and the barb are arranged on the PCB, so that the PCB and the connector can be fixed more firmly.

The PCB board, i.e., printed circuit board (Printed Circuit Board), also known as a printed circuit board, a printed wiring board, is an important electronic component, and is a support for electronic components and a provider of electrical connections between the electronic components. The PCB board is manufactured using electronic printing techniques and is therefore referred to as a "printed" circuit board. As long as there are electronic components such as integrated circuits, a PCB board is required to be used in order to connect the electronic components to each other. The PCB reduces the whole volume, lowers the cost, improves the quality and the reliability of the electronic equipment, and is an important part of the modern electronic equipment.

In this embodiment, the first connection conductor inserted into the housing is improved, preferably, the first connection conductor is a PCB board, in the prior art, the PCB board is connected to the housing through a metal plug externally connected to the housing by an electric wire or a cable for manual soldering, the structural principle of connection is a chemical high-temperature soldering mode, the soldering iron is high in temperature, the soldering high temperature of the soldering wire can be conducted to a plastic material of the housing, the plastic housing can be scalded, deformed, shrinking and other adverse phenomena are caused, and in the soldering process, a small amount of smoke is generated by rosin and soldering flux in the tin in the high-temperature soldering process, so that adverse effects are generated to the environment. Moreover, in the operation process, tin slag and residues can form spherical tin beads, and the spherical tin beads remain in the inner cavity of the pcb to become hidden quality hazards of products, so that quality faults of the products are caused, and the conventional continuous mode is time-consuming, labor-consuming, low in welding speed and incapable of ensuring production efficiency and quality.

According to the application, the grooves are formed in the PCB, and the protrusions are arranged at positions corresponding to the grooves in the shell, so that the PCB can be firmly fixed on the shell without welding, and is prevented from falling off the shell.

Preferably, the ends of the housing near both sides in the direction of the first connection conductor have chamfers. Supplement housing structure diagram with chamfer

In the embodiment of the invention, the chamfer angles of the two ends of the shell close to the direction of the first connecting conductor can facilitate the assembly of the connector, and because the parts of the connector are assembled in a plugging mode, the chamfer angles are arranged on the two ends of the shell close to the direction of the first connecting conductor, namely the plugging of the connector can be completed by manpower without assembling the connector by special tools, thereby facilitating the use of staff, saving complicated assembly engineering, saving labor and greatly reducing the production cost.

Preferably, referring to fig. 5, a chamfer having an angle of thirty degrees is further formed at the first protrusion of the first locking arm.

The thirty-degree chamfer can enable the engagement of the CPA device and the shell to be firmer, and when the CPA device is separated from the shell, the CPA device can be separated from the shell only by separating a moment arm of the shell from a certain distance, the thirty-degree chamfer can be separated from the shell within a limited distance, if the angle of the chamfer is too large, the CPA device is more difficult to separate from the shell, and if the angle of the chamfer is too small, the engagement of the CPA device and the shell is not firmer, so as a preferred embodiment, the application forms a chamfer with an angle of thirty degrees at the first bulge of the first locking arm.

Preferably, referring to fig. 9, the second connection conductor is a linear conductor.

The linear conductor includes: copper foil wire is formed by winding copper foil (compressed by copper wires) on polyester to form one strand, usually four strands, and the copper foil has elasticity, flexibility and bending resistance and is easy to absorb moisture. But its fiber core is easily oxidized and blackened and is mainly used as a conductor of telephone lines and game machines (also called coaxial lines). Bare copper wires, although highly conductive, are susceptible to oxidation at high temperatures, have a single bare (or solid) copper wire and a plurality of bare copper wires stranded for the purpose of keeping the conductor soft (also known as AD wire). Tin-plated copper wires are coated with metallic tin on the surfaces of copper wires by a hot dip or electroplating method so as to prevent corrosion/discoloration of copper and facilitate welding of the wires, and the tin-plated copper wires are mainly divided into single-stranded tin-plated copper wires and stranded wires. Twisting serves to keep the conductor soft (also known as TD wire). The bare stranded copper wire is mainly used in an electronic wire connecting circuit board, is easy to weld on one hand, and is hard and difficult to bend on the other hand, so that the bare stranded copper wire is convenient to insert into a printed circuit board (also called TC wire). The copper-plated stranded wire is mainly used for connecting an electronic circuit by an electronic wire, the performance of the copper-plated stranded wire is the same as that of a bare copper stranded wire, and the adhesive force of a tin-plated layer is superior to that of the bare copper stranded wire (also called TS wire).

Example 2

S100, preparing a shell, a terminal assembly, a CPA device and a TPA device;

s200, inserting the terminal assembly into the shell after pressing the line, and inserting the TPA device into the opening;

S300, inserting the CPA device into a pre-pressing position to obtain a pre-pressing state connector;

s400, under the connector in a pre-pressed state, the PCB is used as a first connecting conductor to be buckled and connected with the shell;

s500, the CPA device is pressed to be inserted into the locking position from the pre-pressing position, and assembly is completed.

The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clip-on connector, comprising: a housing, a terminal assembly, a CPA device, and a TPA device; a plurality of openings are formed in the housing, and the TPA device is inserted into the openings when in operation; a cavity is formed in the housing for accommodating the terminal assembly; the CPA device is inserted into one end of the shell;

The CPA device is configured to achieve secondary locking of the connector;

Wherein,

The first locking arm transversely extends along the direction of the shell;

2. The clip-on connector of claim 1, wherein the CPA device further comprises:

the second locking arm transversely extends along the direction of the shell;

3. The clip-on connector of claim 2, wherein the housing includes an upper housing formed with the plurality of openings and a lower housing disposed opposite the upper housing, wherein the cavity is formed between the upper housing and the lower housing; the left and right end sides of the housing further include connection arms that physically connect the upper housing and the lower housing.

4. The clip-on connector of claim 1, further comprising:

A first snap-in point located below the connecting arm;

5. A clip-on connector as defined in claim 3, further comprising:

the arm of force is provided with a second clamping point;

6. A clip-on connector as defined in claim 3, wherein the upper housing further comprises a limit groove;

7. The clip-on connector of claim 1, wherein the CPA device further comprises: third protrusions located at both ends of the connecting beam;

8. The clip-on connector of claim 1, wherein the first connecting conductor is fluted;

the shell is connected with the first connecting conductor in a clamping way through the groove and the bulge;

The grooves are a pair of special-shaped fool-proof grooves and are respectively arranged on two sides of the first connecting conductor.

9. The board-clamping connector according to claim 1, wherein the ends of the housing near both sides in the direction of the first connecting conductor are provided with chamfers.

10. A method of assembling a clip-on connector for forming a clip-on connector as claimed in any one of claims 1 to 9, comprising the steps of:

preparing the housing, terminal assembly, CPA device, and TPA device;